[infinispan-dev] Infinispan Large Scale support

[david marion]

Galder,
 
 Thanks! So I may need to add FLUSH back in for the distributed case?
 
Dave Marion
 
> From: galder at redhat.com
> Date: Wed, 6 Apr 2011 20:44:44 +0200
> To: infinispan-dev at lists.jboss.org
> Subject: Re: [infinispan-dev] Infinispan Large Scale support
> 
> David,
> 
> Removing FLUSH is something that causes issues as highlighted by https://issues.jboss.org/browse/ISPN-937
> 
> Cheers,
> 
> On Apr 4, 2011, at 5:45 PM, david marion wrote:
> 
> > 
> > Good news! I was able to use the system property from ISPN-83 and remove the FLUSH from the jgroups config with 4.2.1.FINAL, and start-up times are much much better. We have a replicated cache on about 420+ nodes up in under 2 minutes. I am seeing an issue with the distributed cache though with as little as 5 nodes. 
> > 
> > In the coordinator log I see 
> > 
> > org.infinispan.distribution.DistributionmanagerImpl: Detected a view change. Member list changed.......
> > org.infinispan.distribution.DistributionmanagerImpl: This is a JOIN event! Wait for notification from new joiner <name>
> > 
> > In the log from the joining node I see:
> > 
> > org.infinispan.distribution.JoinTask: Commencing rehash on node: <name>. Before start, distributionManager.joinComplete=false
> > org.infinispan.distribution.JoinTask: Requesting old consistent hash from coordinator
> > 
> > I jstack'd the joiner, the DefaultCacheManager.getCache() method is waiting on org.infinispan.distribution.DistributionManagerImpl.waitForJoinToComplete() and the Rehasher thread
> > is waiting on:
> > 
> > at org.infinispan.util.concurrent.ReclosableLatch.await(ReclosableLatch.java:75)
> > at org.infinipsan.remoting.transport.jgroups.JGroupsDistSync.blockUntilNoJoinsInProgress(JGroupsDistSync.java:113)
> > 
> > Any thoughts?
> > 
> > > Date: Wed, 23 Mar 2011 15:58:19 +0100
> > > From: bban at redhat.com
> > > To: infinispan-dev at lists.jboss.org
> > > Subject: Re: [infinispan-dev] Infinispan Large Scale support
> > > 
> > > 
> > > 
> > > On 3/23/11 2:39 PM, david marion wrote:
> > > >
> > > > Bela,
> > > >
> > > > Is there a way to start up the JGroups stack on every node without using Infinispan?
> > > 
> > > 
> > > You could use ViewDemo [1] or Draw. Or write your own small test 
> > > program; if you take a look at ViewDemo's src, you'll see that it's onyl 
> > > a page of code.
> > > 
> > > 
> > > > Is there some functional test that I can run or something? I know I can't remove the FLUSH from Infinispan until 5.0.0 and I don't know if I can upgrade the underlying
> > > >JGroups jar.
> > > 
> > > 
> > > I suggest test with the latest JGroups (2.12.0) and +FLUSH and -FLUSH. 
> > > The +FLUSH config should be less painful now, with the introduction of 
> > > view bundling: we need to run flush fewer times than before.
> > > 
> > > 
> > > [1] http://community.jboss.org/wiki/TestingJBoss
> > > 
> > > -- 
> > > Bela Ban
> > > Lead JGroups / Clustering Team
> > > JBoss
> > > _______________________________________________
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> > > infinispan-dev at lists.jboss.org
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> 
> --
> Galder Zamarreño
> Sr. Software Engineer
> Infinispan, JBoss Cache
> 
> 
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